On the phase structure of driven quantum systems
Disordered Systems and Neural Networks
2016-08-23 v3 Strongly Correlated Electrons
Abstract
Clean and interacting periodically driven quantum systems are believed to exhibit a single, trivial "infinite-temperature" Floquet-ergodic phase. In contrast, here we show that their disordered Floquet many-body localized counterparts can exhibit distinct ordered phases delineated by sharp transitions. Some of these are analogs of equilibrium states with broken symmetries and topological order, while others - genuinely new to the Floquet problem - are characterized by order and non-trivial periodic dynamics. We illustrate these ideas in driven spin chains with Ising symmetry.
Cite
@article{arxiv.1508.03344,
title = {On the phase structure of driven quantum systems},
author = {Vedika Khemani and Achilleas Lazarides and Roderich Moessner and S. L. Sondhi},
journal= {arXiv preprint arXiv:1508.03344},
year = {2016}
}
Comments
v3 - published version. Discussions expanded/clarified in few places